CN102507745A - Ultrasonic transducer device for detecting light pore composite material - Google Patents
Ultrasonic transducer device for detecting light pore composite material Download PDFInfo
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- CN102507745A CN102507745A CN2011102883212A CN201110288321A CN102507745A CN 102507745 A CN102507745 A CN 102507745A CN 2011102883212 A CN2011102883212 A CN 2011102883212A CN 201110288321 A CN201110288321 A CN 201110288321A CN 102507745 A CN102507745 A CN 102507745A
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Abstract
The invention relates to an ultrasonic transducer device for detecting a light pore composite material. The ultrasonic transducer device comprises an ultrasonic transducer, silicon rubber wheel leather, a movable universal wheel, a spring device (a force adjusting mechanism), a rigid material shell, a big bracket and a universal wheel bracket. The ultrasonic transducer device can realize dynamic, rapid, dry coupling and transmission type detection of internal defects of a tested piece; meanwhile, as far as a composite material plate with relatively big area is considered, a central part is difficult to detect when the composite material plate is detected via a transmission method (that is mainly to say that two ultrasonic transducers are difficult to guarantee to be always vertical and opposite to a same beeline), so that a special bracket structure is designed, and more accurate, more flexible and quicker detection is realized.
Description
One, technical field
The present invention relates to a kind of ultrasound transducer means of suitable detection lightweight hole compound substance, this transducer apparatus can be realized quick tumbling-type, the dried coupling measurement of transmission silicon rubber.
Two, background technology
Lightweight hole compound substance (like ceramic matric composite) has excellent properties such as light weight, high temperature resistant, low-density, height ratio mould, anti-oxidant and anti-ablation; Develop into one of indispensable new type high temperature structured material in civil and military field, can be widely used in high thrust-weight ratio aeromotor hot-end component, aerospacecraft thermal protection system, aeroplane brake discs etc.
Because lightweight hole compound substance can not adopt fluid couplant to detect; Usually adopt methods such as non-contacting ray, thermal infrared, Air Coupling ultrasound detection and the dried coupling ultrasonic detection of contact that its interior porosity and defective are detected; Facts have proved; Ray method adopts safeguard procedures be inconvenient to use except requiring duration of work, and is bad to the susceptibility of low-density composite detection simultaneously; The infrared thermal imaging method is poor to the variation susceptibility of porosity, resolution is low, and the macroscopical big cavity that is only applicable to surface and inferior surface is detected; The lightweight hole compound substance little to density, that porosity is also less; Air Coupling ultrasound detection transmittance is bad; Insensitive to porosity change; Can't accurately measure and defective is detected porosity, it be better therefore to adopt contact to do the method measurement effect that is coupled for this type of material.
Ultrasonic reflection method principle is to use same transducer to realize transmitting and receiving of ultrasonic signal; Promptly detect in the one-sided completion of test specimen, utilize the reflection echo detecting defects position and the size of test specimen bottom surface or inherent vice, its precondition is that ultrasonic probe can receive Bottom echo; For lightweight hole compound substance; Because internal void is more, ultrasound wave will be realized penetrating the test specimen double thickness and receive Bottom echo extremely difficult, so the ultrasonic reflection method is infeasible.Two transducers of ultrasonic transmission beam method are positioned at the test specimen both sides, come defect recognition through the energy attenuation to the transmission ultrasonic signal, and signal identification is fairly simple; Ultrasonic signal only need penetrate one times of thickness of test specimen, realizes more easily; Simultaneously owing to all be significantly increased aspect the susceptibility that ultrasonic transmission method detects in penetrability and porosity than method for reflection and improve, to sum up, should adopt transmission to do to be coupled the method for contact type measurement for the detection of lightweight hole compound substance.
Three, summary of the invention
The purpose of this invention is to provide a kind of ultrasound transducer means that can realize dynamically fast, do coupling, transmission-type detection; Be primarily aimed at the ultrasonic dried coupling of lightweight hole composite material by adopting, transmission tumbling-type method measuring its internal defective; The difficult problem (mainly being that two ultrasonic transducers are difficult to guarantee vertically opposite all the time at same straight line) that the centre is difficult to detect when considering to adopt transmission measurement for the bigger composite panel of area simultaneously; Designed special supporting structure, made detection more flexibly, fast, conveniently.
Ultrasound transducer means of the present invention comprises: two of ultrasonic transducers, silicon rubber, fluid couplant, movable universal wheel, spring assembly (power governor motion), rigid material housing, big support, caster bracket.
Said caster bracket fixes ultrasonic transducer through support shaft (bearing); The caster bracket rear end is connected through universal wheel with big support front end; Ultrasonic transducer is fixed in the rigid material housing through support shaft (bearing); Keep the transducer surface of contact parallel with the test specimen surface all the time, and it is vertically corresponding to transmit and receive transducer probe.Said rigid material housing profile is cylindric; Closely be pasted with the identical silicon rubber of thickness in the housing cylindrical surface; As the outer dried couplant of wheel, enclosure interior full of liquid couplant (like machine oil etc.) realizes that transducer and rigid material housing, silicon rubber takes turns the coupling between the skin.On the said big support upright arm spring assembly is installed, is used for regulating the pressure between coupling silicon rubber and the test specimen surface, reach the optimum coupling effect; Can change simultaneously the spring assembly of different length, elasticity coefficient according to the different-thickness of survey composite panel, satisfy the requirement of different-thickness material tests.
The contrast prior art; Transmission-type, dried coupling ultrasonic wave transducer device that the present invention proposes; Well solved the problem of measurement mechanism when lightweight hole compound substance measured, coupling scheme and accuracy of measurement, significant for the lightweight hole NDT of composite that only is fit to dried coupling measurement.
Four, description of drawings:
Fig. 1 is wheeled ultrasonic transducer synoptic diagram;
Fig. 2 is a ultrasound detection transducer apparatus synoptic diagram.
Five, embodiment:
Following specific embodiments of the invention is elaborated:
Shown in Figure 1 is the concrete structure of wheeled ultrasonic transducer, comprises transducer probe 1, silicon rubber wheel skin 2, caster bracket 3 (bearing), rigid material housing 4 and movable universal wheel 5.
Shown in Figure 2 is the concrete structure of ultrasound detection transducer apparatus, comprises tested composite panel 6, ultrasonic emitting probe 7 and receiving transducer 8, spring assembly (power governor motion) 9 and big support (adjustable-length) 10.
The measurement mechanism one-piece construction is as shown in Figure 2; Thickness according to tested composite board is different; At first designed and be used for the spring device 9 that power is regulated; Spring device 9 can realize changing the spring assembly of different length, elasticity coefficient, satisfies the requirement of tested compound substance plate thickness different (thickness range 10-30mm), thereby the difference of elasticity coefficient also can realize the different effects that reach the optimum coupling effect of silicon rubber pressure simultaneously.Difference according to tested sheet material length; Designed the big support 10 of adjustable length; Its length need satisfy half greater than tested composite board maximum length, because wheeled ultrasonic transducer is equipped with movable universal wheel, makes ultrasound transducer means can realize 360 ° freely detecting simultaneously.
Wheeled ultrasonic transducer structure is as shown in Figure 1; Wherein rigid material housing 4 is as wheeled skeleton; Ultrasound transducer probe 1 is fixed in the housing through support 3 (bearing), and guarantees that the transducer probe surface of contact is parallel with the housing lower surface all the time, and it is parallel all the time relatively when measuring, to transmit and receive ultrasonic probe; Probe lead wire is drawn through support 3 (bearing internal bore), realizes and outside being connected.
Fluid couplant is filled with in rigid material housing 4 inside, is closely connected by silicon rubber wheel skin at the housing cylindrical outer surface, realizes the contact type measurement with tested composite panel.
When specifically detecting the compound substance test specimen, can promote big support along the test specimen surface direction by manual work or Electric Machine Control and accomplish defects detection lightweight hole composite panel.
Claims (6)
1. ultrasound transducer means that be fit to detect lightweight hole compound substance; It is characterized in that, comprising: two of ultrasonic transducers, silicon rubber wheel skin, movable universal wheel, spring assembly (power governor motion), rigid material housing, big support, caster bracket.
2. device according to claim 1 is characterized in that: the ultrasonic transducer lead-in wire is drawn through support 3 (bearing internal bore), realizes and outside being connected.
3. device according to claim 1 is characterized in that: ultrasonic emitting probe 7 is fixed in the rigid material housing 4 through caster bracket 3 (bearing) with receiving transducer 8.
4. device according to claim 1 is characterized in that: the spring device 9 that is used for the power adjusting can realize changing the spring of different length, elasticity coefficient.
5. device according to claim 1 is characterized in that: the big support 10 of adjustable length, its length need satisfy half greater than tested composite panel maximum length.
6. device according to claim 1 is characterized in that: wheeled ultrasonic transducer is equipped with movable universal wheel, makes ultrasound transducer means can realize 360 ° freely detecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011102883212A CN102507745A (en) | 2011-09-22 | 2011-09-22 | Ultrasonic transducer device for detecting light pore composite material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102883212A CN102507745A (en) | 2011-09-22 | 2011-09-22 | Ultrasonic transducer device for detecting light pore composite material |
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| CN102507745A true CN102507745A (en) | 2012-06-20 |
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| CN2011102883212A Pending CN102507745A (en) | 2011-09-22 | 2011-09-22 | Ultrasonic transducer device for detecting light pore composite material |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267802A (en) * | 2013-05-12 | 2013-08-28 | 大连理工大学 | Quick acoustic wave detecting device of natural gas hydrate fidelity core |
| CN105181811A (en) * | 2015-10-21 | 2015-12-23 | 江苏融庆科技有限公司 | Self-adapted ultrasonic energy converter module |
| CN108132300A (en) * | 2017-12-14 | 2018-06-08 | 洛阳双瑞风电叶片有限公司 | It is a kind of for rear edge of wind turbine blade molding adhesive to wearing the tooling and method of test |
| CN108802190A (en) * | 2017-04-28 | 2018-11-13 | 通用汽车环球科技运作有限责任公司 | Portable acoustic equipment for in-situ monitoring workpiece |
| CN108872396A (en) * | 2018-07-28 | 2018-11-23 | 扬州大学 | A kind of special auxiliary device of the online ultrasound detection of ceramic membrane |
| CN109283259A (en) * | 2018-09-14 | 2019-01-29 | 华中科技大学无锡研究院 | A kind of ultrasonic scanning device and its application and method |
| CN109678629A (en) * | 2019-01-31 | 2019-04-26 | 北京理工大学 | The method of high energy acoustic beam abatement propellant curing residual stress |
| CN109781599A (en) * | 2017-11-13 | 2019-05-21 | 中航通飞华南飞机工业有限公司 | The detection method of carbon fibre composite plate porosity based on Air Coupling ultrasound |
| CN109813803A (en) * | 2019-03-05 | 2019-05-28 | 南京工程学院 | A kind of ultrasonic detection method based on method of polar coordinates |
| CN110361449A (en) * | 2019-07-18 | 2019-10-22 | 湖北三江航天江北机械工程有限公司 | Variable cross-section engine jet pipe ultrasonic detecting probe and detection method |
| CN112903812A (en) * | 2019-12-03 | 2021-06-04 | 哈尔滨工业大学 | Large-scale high-speed rotation equipment flaw detection device based on pressure dry coupling ultrasound |
| CN114324587A (en) * | 2021-12-28 | 2022-04-12 | 中国飞机强度研究所 | Detection device adopting dry coupling ultrasonic penetration method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1291285A (en) * | 1998-02-17 | 2001-04-11 | Ce核电力有限公司 | Apparatus and method for performing non-destructive inspections of large area aircraft structure |
| CN101143245A (en) * | 2006-09-13 | 2008-03-19 | 重庆融海超声医学工程研究中心有限公司 | Automatic clamp-on ultrasonic therapeutic device |
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- 2011-09-22 CN CN2011102883212A patent/CN102507745A/en active Pending
Patent Citations (2)
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| CN1291285A (en) * | 1998-02-17 | 2001-04-11 | Ce核电力有限公司 | Apparatus and method for performing non-destructive inspections of large area aircraft structure |
| CN101143245A (en) * | 2006-09-13 | 2008-03-19 | 重庆融海超声医学工程研究中心有限公司 | Automatic clamp-on ultrasonic therapeutic device |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267802B (en) * | 2013-05-12 | 2016-03-02 | 大连理工大学 | A kind of gas hydrate fidelity core sound wave device for fast detecting |
| CN103267802A (en) * | 2013-05-12 | 2013-08-28 | 大连理工大学 | Quick acoustic wave detecting device of natural gas hydrate fidelity core |
| CN105181811A (en) * | 2015-10-21 | 2015-12-23 | 江苏融庆科技有限公司 | Self-adapted ultrasonic energy converter module |
| CN105181811B (en) * | 2015-10-21 | 2017-09-05 | 江苏融庆科技有限公司 | A kind of adaptive ultrasonic transducer module |
| CN108802190A (en) * | 2017-04-28 | 2018-11-13 | 通用汽车环球科技运作有限责任公司 | Portable acoustic equipment for in-situ monitoring workpiece |
| CN109781599A (en) * | 2017-11-13 | 2019-05-21 | 中航通飞华南飞机工业有限公司 | The detection method of carbon fibre composite plate porosity based on Air Coupling ultrasound |
| CN108132300A (en) * | 2017-12-14 | 2018-06-08 | 洛阳双瑞风电叶片有限公司 | It is a kind of for rear edge of wind turbine blade molding adhesive to wearing the tooling and method of test |
| CN108872396A (en) * | 2018-07-28 | 2018-11-23 | 扬州大学 | A kind of special auxiliary device of the online ultrasound detection of ceramic membrane |
| CN109283259B (en) * | 2018-09-14 | 2021-03-23 | 华中科技大学无锡研究院 | Ultrasonic scanning device and application and method thereof |
| CN109283259A (en) * | 2018-09-14 | 2019-01-29 | 华中科技大学无锡研究院 | A kind of ultrasonic scanning device and its application and method |
| CN109678629A (en) * | 2019-01-31 | 2019-04-26 | 北京理工大学 | The method of high energy acoustic beam abatement propellant curing residual stress |
| CN109813803A (en) * | 2019-03-05 | 2019-05-28 | 南京工程学院 | A kind of ultrasonic detection method based on method of polar coordinates |
| CN109813803B (en) * | 2019-03-05 | 2021-08-13 | 南京工程学院 | Ultrasonic detection method based on polar coordinate method |
| CN110361449A (en) * | 2019-07-18 | 2019-10-22 | 湖北三江航天江北机械工程有限公司 | Variable cross-section engine jet pipe ultrasonic detecting probe and detection method |
| CN112903812A (en) * | 2019-12-03 | 2021-06-04 | 哈尔滨工业大学 | Large-scale high-speed rotation equipment flaw detection device based on pressure dry coupling ultrasound |
| CN114324587A (en) * | 2021-12-28 | 2022-04-12 | 中国飞机强度研究所 | Detection device adopting dry coupling ultrasonic penetration method |
| CN114324587B (en) * | 2021-12-28 | 2024-01-12 | 中国飞机强度研究所 | Dry coupling ultrasonic penetration method detection device |
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Application publication date: 20120620 |